Trace number 312542

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
picosat 535UNSAT 134.544 134.599

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/dated-10-15-u.cnf
MD5SUM3b92b02eda280b3d74433fa589c2d772
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark18.4502
Satisfiable
(Un)Satisfiability was proved
Number of variables193016
Number of clauses885873
Sum of the clauses size2034196
Maximum clause length10
Minimum clause length1
Number of clauses of size 116194
Number of clauses of size 2700175
Number of clauses of size 3133124
Number of clauses of size 44040
Number of clauses of size 516160
Number of clauses of size over 516180

Solver Data (download as text)

134.44/134.59	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node54/watcher-312542-1176856556 -o ROOT/results/node54/solver-312542-1176856556 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312542-1176856556/picosat /tmp/evaluation/312542-1176856556/instance-312542-1176856556.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.95 0.96 3/66 11756
/proc/meminfo: memFree=1733120/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=728 CPUtime=0
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 133030115 745472 82 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 182 82 40 102 0 77 0

[startup+0.054624 s]
/proc/loadavg: 0.91 0.95 0.96 3/66 11756
/proc/meminfo: memFree=1733120/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=2664 CPUtime=0.04
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 424 0 0 0 2 2 0 0 18 0 1 0 133030115 2727936 400 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 666 400 40 102 0 561 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2664

[startup+0.101628 s]
/proc/loadavg: 0.91 0.95 0.96 3/66 11756
/proc/meminfo: memFree=1733120/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=2796 CPUtime=0.09
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 515 0 0 0 4 5 0 0 18 0 1 0 133030115 2863104 491 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 699 491 40 102 0 594 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2796

[startup+0.301655 s]
/proc/loadavg: 0.91 0.95 0.96 3/66 11756
/proc/meminfo: memFree=1733120/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=3192 CPUtime=0.29
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 636 0 0 0 13 16 0 0 19 0 1 0 133030115 3268608 612 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 798 612 40 102 0 693 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701705 s]
/proc/loadavg: 0.91 0.95 0.96 3/66 11756
/proc/meminfo: memFree=1733120/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=10400 CPUtime=0.69
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 1833 0 0 0 29 40 0 0 22 0 1 0 133030115 10649600 1809 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 2600 1809 40 102 0 2495 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10400

[startup+1.50181 s]
/proc/loadavg: 0.91 0.95 0.96 2/67 11757
/proc/meminfo: memFree=1720696/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=20316 CPUtime=1.49
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 3690 0 0 0 61 88 0 0 25 0 1 0 133030115 20803584 3666 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 5079 3666 40 102 0 4974 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20316

[startup+3.10201 s]
/proc/loadavg: 0.91 0.95 0.96 2/67 11757
/proc/meminfo: memFree=1717368/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=24168 CPUtime=3.09
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 4635 0 0 0 132 177 0 0 25 0 1 0 133030115 24748032 4611 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 6042 4611 40 102 0 5937 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 24168

[startup+6.30142 s]
/proc/loadavg: 0.92 0.95 0.96 2/67 11757
/proc/meminfo: memFree=1708792/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=32064 CPUtime=6.29
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 6841 0 0 0 278 351 0 0 25 0 1 0 133030115 32833536 6817 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 8016 6817 40 102 0 7911 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 32064

[startup+12.7012 s]
/proc/loadavg: 0.93 0.95 0.96 2/67 11757
/proc/meminfo: memFree=1704440/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=36584 CPUtime=12.68
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 7235 0 0 0 904 364 0 0 25 0 1 0 133030115 37462016 7198 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 9146 7198 48 102 0 9041 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 36584

[startup+25.5019 s]
/proc/loadavg: 0.94 0.96 0.96 2/67 11757
/proc/meminfo: memFree=1704056/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=36968 CPUtime=25.49
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 7352 0 0 0 2184 365 0 0 25 0 1 0 133030115 37855232 7315 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529841 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 9242 7315 48 102 0 9137 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 36968

[startup+51.1011 s]
/proc/loadavg: 0.96 0.96 0.96 2/67 11757
/proc/meminfo: memFree=1701688/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=39420 CPUtime=51.06
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 7966 0 0 0 4740 366 0 0 25 0 1 0 133030115 40366080 7929 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 9855 7929 48 102 0 9750 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 39420

[startup+102.306 s]
/proc/loadavg: 0.98 0.96 0.96 2/67 11757
/proc/meminfo: memFree=1699320/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=41644 CPUtime=102.25
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8551 0 0 0 9857 368 0 0 25 0 1 0 133030115 42643456 8514 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525802 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10411 8514 48 102 0 10306 0
Current children cumulated CPU time (s) 102.25
Current children cumulated vsize (KiB) 41644

Solver just ended. Dumping a history of the last processes samples

[startup+115.102 s]
/proc/loadavg: 0.98 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698872/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=42288 CPUtime=115.05
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8690 0 0 0 11137 368 0 0 25 0 1 0 133030115 43302912 8653 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529841 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10572 8653 48 102 0 10467 0
Current children cumulated CPU time (s) 115.05
Current children cumulated vsize (KiB) 42288

[startup+127.902 s]
/proc/loadavg: 0.99 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698360/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=42684 CPUtime=127.84
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8816 0 0 0 12416 368 0 0 25 0 1 0 133030115 43708416 8779 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529802 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10671 8779 48 102 0 10566 0
Current children cumulated CPU time (s) 127.84
Current children cumulated vsize (KiB) 42684

[startup+131.101 s]
/proc/loadavg: 0.99 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698040/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=43840 CPUtime=131.04
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8886 0 0 0 12736 368 0 0 25 0 1 0 133030115 44892160 8849 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10960 8849 48 102 0 10855 0
Current children cumulated CPU time (s) 131.04
Current children cumulated vsize (KiB) 43840

[startup+132.702 s]
/proc/loadavg: 0.99 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698040/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=43840 CPUtime=132.64
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8888 0 0 0 12896 368 0 0 25 0 1 0 133030115 44892160 8851 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10960 8851 48 102 0 10855 0
Current children cumulated CPU time (s) 132.64
Current children cumulated vsize (KiB) 43840

[startup+133.502 s]
/proc/loadavg: 0.99 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698040/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=43840 CPUtime=133.44
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8888 0 0 0 12976 368 0 0 25 0 1 0 133030115 44892160 8851 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10960 8851 48 102 0 10855 0
Current children cumulated CPU time (s) 133.44
Current children cumulated vsize (KiB) 43840

[startup+134.302 s]
/proc/loadavg: 0.99 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698040/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=43840 CPUtime=134.24
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8933 0 0 0 13056 368 0 0 25 0 1 0 133030115 44892160 8896 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525860 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10960 8896 48 102 0 10855 0
Current children cumulated CPU time (s) 134.24
Current children cumulated vsize (KiB) 43840

[startup+134.502 s]
/proc/loadavg: 0.99 0.97 0.96 2/67 11757
/proc/meminfo: memFree=1698040/2055920 swapFree=4181256/4192956
[pid=11756] ppid=11754 vsize=43840 CPUtime=134.44
/proc/11756/stat : 11756 (picosat) R 11754 11756 10844 0 -1 4194304 8937 0 0 0 13076 368 0 0 25 0 1 0 133030115 44892160 8900 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134523092 0 0 4096 0 0 0 0 17 1 0 0
/proc/11756/statm: 10960 8900 48 102 0 10855 0
Current children cumulated CPU time (s) 134.44
Current children cumulated vsize (KiB) 43840

Child status: 20
Real time (s): 134.599
CPU time (s): 134.544
CPU user time (s): 130.851
CPU system time (s): 3.69244
CPU usage (%): 99.9589
Max. virtual memory (cumulated for all children) (KiB): 43840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 130.851
system time used= 3.69244
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8943
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 7
involuntary context switches= 331

runsolver used 0.144977 second user time and 0.351946 second system time

The end

Launcher Data (download as text)

Begin job on node54 on Wed Apr 18 00:35:56 UTC 2007

IDJOB= 312542
IDBENCH= 20344
IDSOLVER= 106
FILE ID= node54/312542-1176856556

PBS_JOBID= 4590190

Free space on /tmp= 66325 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/dated-10-15-u.cnf
COMMAND LINE= /tmp/evaluation/312542-1176856556/picosat /tmp/evaluation/312542-1176856556/instance-312542-1176856556.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node54/watcher-312542-1176856556 -o ROOT/results/node54/solver-312542-1176856556 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312542-1176856556/picosat /tmp/evaluation/312542-1176856556/instance-312542-1176856556.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  3b92b02eda280b3d74433fa589c2d772

RANDOM SEED= 290942889

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node54.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1733592 kB
Buffers:         21212 kB
Cached:         250316 kB
SwapCached:       5028 kB
Active:          64000 kB
Inactive:       218368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1733592 kB
SwapTotal:     4192956 kB
SwapFree:      4181256 kB
Dirty:           16160 kB
Writeback:           0 kB
Mapped:          15652 kB
Slab:            25860 kB
Committed_AS:  2018920 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66325 MiB

End job on node54 on Wed Apr 18 00:38:11 UTC 2007